* [intel-lts:5.4/yocto 9356/18524] drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:993:47: sparse: sparse: incorrect type in assignment (different base types)
@ 2021-09-30 9:53 kernel test robot
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From: kernel test robot @ 2021-09-30 9:53 UTC (permalink / raw)
To: kbuild-all
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tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto
head: 8246417e2e14117a0a9f3625c2122fc26c92c6bd
commit: 94e13c2880167751eb5cbbcb0e7be68ca83f0653 [9356/18524] dmaengine: dw-axi-dma: support cyclic mode
config: ia64-randconfig-s031-20210930 (attached as .config)
compiler: ia64-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://github.com/intel/linux-intel-lts/commit/94e13c2880167751eb5cbbcb0e7be68ca83f0653
git remote add intel-lts https://github.com/intel/linux-intel-lts.git
git fetch --no-tags intel-lts 5.4/yocto
git checkout 94e13c2880167751eb5cbbcb0e7be68ca83f0653
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=ia64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:993:47: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] block_ts_lo @@ got unsigned long @@
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:993:47: sparse: expected restricted __le32 [usertype] block_ts_lo
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:993:47: sparse: got unsigned long
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1068:55: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] block_ts_lo @@ got unsigned long @@
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1068:55: sparse: expected restricted __le32 [usertype] block_ts_lo
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1068:55: sparse: got unsigned long
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1070:55: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] block_ts_lo @@ got unsigned long @@
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1070:55: sparse: expected restricted __le32 [usertype] block_ts_lo
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1070:55: sparse: got unsigned long
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1169:59: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned int [usertype] irq_mask @@ got restricted __le32 [usertype] status_lo @@
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1169:59: sparse: expected unsigned int [usertype] irq_mask
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1169:59: sparse: got restricted __le32 [usertype] status_lo
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1170:42: sparse: sparse: invalid assignment: |=
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1170:42: sparse: left side has type restricted __le32
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1170:42: sparse: right side has type unsigned long
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1111:22: sparse: sparse: context imbalance in 'axi_chan_handle_err' - different lock contexts for basic block
vim +993 drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
912
913 static struct dma_async_tx_descriptor *
914 dw_chan_prep_dma_cyclic(struct dma_chan *dchan, dma_addr_t buf_addr,
915 size_t buf_len, size_t period_len,
916 enum dma_transfer_direction direction,
917 unsigned long flags)
918 {
919 struct axi_dma_chan *chan = dchan_to_axi_dma_chan(dchan);
920 struct axi_dma_desc *first = NULL, *prev = NULL;
921 unsigned int reg_width;
922 unsigned int mem_width;
923 unsigned int data_width = BIT(chan->chip->dw->hdata->m_data_width);
924 dma_addr_t reg;
925 u32 reg_value = 0;
926 unsigned int i = 0;
927 u32 ctllo, ctlhi;
928 size_t total_len = 0;
929 size_t block_ts, max_block_ts;
930 u8 lms = 0; // Select AXI0 master for LLI fetching
931 u32 offset;
932
933 if (unlikely(!is_slave_direction(direction)))
934 return NULL;
935
936 chan->direction = direction;
937 chan->cyclic = 0x1;
938
939 max_block_ts = chan->chip->dw->hdata->block_size[chan->id];
940
941 axi_set_hw_channel(chan->chip, chan->hw_hs_num);
942
943 switch (direction) {
944 case DMA_MEM_TO_DEV:
945 reg_width = __ffs(chan->slave_config.dst_addr_width);
946
947 chan->reg_width = reg_width;
948 if (reg_width == DWAXIDMAC_TRANS_WIDTH_16) {
949 offset = DMAC_APB_HALFWORD_WR_CH_EN;
950 reg_value = axi_dma_apb_ioread32(chan->chip, offset);
951 reg_value |= 0x1 << chan->id;
952 axi_dma_apb_iowrite32(chan->chip,
953 DMAC_APB_HALFWORD_WR_CH_EN, reg_value);
954 } else if (reg_width == DWAXIDMAC_TRANS_WIDTH_8) {
955 offset = DMAC_APB_BYTE_WR_CH_EN;
956 reg_value = axi_dma_apb_ioread32(chan->chip, offset);
957 reg_value |= 0x1 << chan->id;
958 axi_dma_apb_iowrite32(chan->chip, offset, reg_value);
959 }
960 reg = chan->slave_config.dst_addr;
961
962 ctllo = axi_dma_prepare_ctllo(chan) |
963 reg_width << CH_CTL_L_DST_WIDTH_POS |
964 DWAXIDMAC_CH_CTL_L_NOINC << CH_CTL_L_DST_INC_POS |
965 DWAXIDMAC_CH_CTL_L_INC << CH_CTL_L_SRC_INC_POS;
966
967 for (i = 0; i < buf_len / period_len; i++) {
968 struct axi_dma_desc *desc;
969 size_t xfer_len;
970 u32 mem, len;
971
972 mem_width = __ffs(data_width | mem | len);
973 if (mem_width > DWAXIDMAC_TRANS_WIDTH_32)
974 mem_width = DWAXIDMAC_TRANS_WIDTH_32;
975
976 xfer_len = period_len;
977 block_ts = period_len;
978
979 desc = axi_desc_get(chan);
980 if (unlikely(!desc))
981 goto err_desc_get;
982
983 if (block_ts > max_block_ts) {
984 block_ts = max_block_ts;
985 xfer_len = max_block_ts << mem_width;
986 }
987
988 ctlhi = axi_dma_prepare_ctlhi(chan);
989
990 ctllo |= mem_width << CH_CTL_L_SRC_WIDTH_POS;
991 write_desc_sar(desc, buf_addr + i * period_len);
992 write_desc_dar(desc, reg);
> 993 desc->lli.block_ts_lo = period_len / 4;
994 desc->lli.ctl_hi = cpu_to_le32(ctlhi);
995 desc->lli.ctl_lo = cpu_to_le32(ctllo);
996
997 set_desc_src_master(desc);
998 set_desc_src_master(desc);
999
1000 // Manage transfer list (xfer_list)
1001 if (!first) {
1002 first = desc;
1003 } else {
1004 write_desc_llp(prev, desc->vd.tx.phys | lms);
1005 list_add_tail(&desc->xfer_list,
1006 &first->xfer_list);
1007 }
1008 prev = desc;
1009 if (i == ((buf_len / period_len) - 1))
1010 write_desc_llp(prev, first->vd.tx.phys | lms);
1011
1012 total_len += xfer_len;
1013
1014 set_desc_last(desc);
1015 }
1016 break;
1017 case DMA_DEV_TO_MEM:
1018 reg_width = __ffs(chan->slave_config.src_addr_width);
1019
1020 chan->reg_width = reg_width;
1021 if (reg_width == DWAXIDMAC_TRANS_WIDTH_16) {
1022 offset = DMAC_APB_HALFWORD_WR_CH_EN;
1023 reg_value = axi_dma_apb_ioread32(chan->chip, offset);
1024 reg_value |= 0x1 << chan->id;
1025 axi_dma_apb_iowrite32(chan->chip, offset, reg_value);
1026 } else if (reg_width == DWAXIDMAC_TRANS_WIDTH_8) {
1027 offset = DMAC_APB_BYTE_WR_CH_EN;
1028 reg_value = axi_dma_apb_ioread32(chan->chip, offset);
1029 reg_value |= 0x1 << chan->id;
1030 axi_dma_apb_iowrite32(chan->chip, offset, reg_value);
1031 }
1032 reg = chan->slave_config.src_addr;
1033 if (reg_width > DWAXIDMAC_TRANS_WIDTH_32)
1034 reg_width = DWAXIDMAC_TRANS_WIDTH_32;
1035 ctllo = axi_dma_prepare_ctllo(chan) |
1036 reg_width << CH_CTL_L_SRC_WIDTH_POS |
1037 DWAXIDMAC_CH_CTL_L_INC << CH_CTL_L_DST_INC_POS |
1038 // Workaround
1039 DWAXIDMAC_CH_CTL_L_NOINC << CH_CTL_L_SRC_INC_POS;
1040
1041 for (i = 0; i < buf_len / period_len; i++) {
1042 struct axi_dma_desc *desc;
1043 size_t xfer_len;
1044 u32 mem, len;
1045
1046 desc = axi_desc_get(chan);
1047 if (unlikely(!desc))
1048 goto err_desc_get;
1049
1050 xfer_len = len;
1051 block_ts = xfer_len >> reg_width;
1052 if (block_ts > max_block_ts) {
1053 block_ts = max_block_ts;
1054 xfer_len = max_block_ts << reg_width;
1055 }
1056 xfer_len = period_len;
1057 block_ts = period_len;
1058 mem_width = __ffs(data_width | mem | xfer_len);
1059 if (mem_width > DWAXIDMAC_TRANS_WIDTH_32)
1060 mem_width = DWAXIDMAC_TRANS_WIDTH_32;
1061
1062 ctlhi = axi_dma_prepare_ctlhi(chan);
1063 ctllo |= mem_width << CH_CTL_L_DST_WIDTH_POS;
1064
1065 write_desc_sar(desc, reg);
1066 write_desc_dar(desc, buf_addr + i * period_len);
1067 if (reg_width == DWAXIDMAC_TRANS_WIDTH_16)
1068 desc->lli.block_ts_lo = period_len / 2;
1069 else if (reg_width >= DWAXIDMAC_TRANS_WIDTH_32)
1070 desc->lli.block_ts_lo = period_len / 4;
1071 desc->lli.ctl_hi = cpu_to_le32(ctlhi);
1072 desc->lli.ctl_lo = cpu_to_le32(ctllo);
1073
1074 set_desc_src_master(desc);
1075 set_desc_src_master(desc);
1076
1077 // Manage transfer list (xfer_list)
1078 if (!first) {
1079 first = desc;
1080 } else {
1081 write_desc_llp(prev, desc->vd.tx.phys | lms);
1082 list_add_tail(&desc->xfer_list,
1083 &first->xfer_list);
1084 }
1085 prev = desc;
1086 if (i == ((buf_len / period_len) - 1))
1087 write_desc_llp(prev, first->vd.tx.phys | lms);
1088
1089 total_len += xfer_len;
1090
1091 // TODO: check if needed
1092 set_desc_last(desc);
1093 }
1094 break;
1095 default:
1096 return NULL;
1097 }
1098
1099 if (unlikely(!first))
1100 return NULL;
1101
1102 return vchan_tx_prep(&chan->vc, &first->vd, flags);
1103
1104 err_desc_get:
1105 if (first)
1106 axi_desc_put(first);
1107
1108 return NULL;
1109 }
1110
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-09-30 9:53 [intel-lts:5.4/yocto 9356/18524] drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:993:47: sparse: sparse: incorrect type in assignment (different base types) kernel test robot
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